Specification: 1.Frequency range: 20hz - 20khz 2.Impedance: 32 ohm +/-15% 3.Sensitivity:98db+/-3db at 1khz 4.Speaker:10mm 5.Plug type :3.5mm stereo 6.Length of cable: 1.2m Features: 1.From own factory in shenzhen. 2.New design, beautiful appearance, durable 3.Ce and rohs are compliant 4.Perfect use for ipod, mp3, mp4, walk man walk talk 5.Strong bass let you lose yourself in the music 6.Advantage price and high quality for mass purchase Note: 1. Price term: western union or t/t (30% down payment, the balance before shipment) 2. Delivery time: 15-25 days depending on your order quantity 3. Sample available & need pay, but will refund to you when order confirmed 4. Moq: 10000pcs 5. With ce/rohs or not 6. Any question, pls feel free to contact us.